AS5047D-ATSM

The AS5047D is a high-resolution rotary position sensor for fast absolute angle measurement over a full 360-degree range. This new position sensor is equipped with revolutionary integrated dynamic angle error compensation (DAEC) with almost 0 latency and offers a robust design that suppresses the influence of any homogenous external stray magnetic field.

A standard 4-wire SPI serial interface allows a host microcontroller to read 14-bit absolute angle position data from the AS5047D and to program non-volatile settings without a dedicated programmer.

Incremental movements are indicated on a set of ABI signals with a maximum resolution of 2000 steps / 500 pulses per revolution in decimal mode and 2048 steps / 512 pulses per revolution in binary mode. The resolution of the ABI signal is programmable and can be reduced to 32 steps per revolution, or 8 pulses per revolution.

Brushless DC (BLDC) motors are controlled through a standard UVW commutation interface with a programmable number of pole pairs from 1 to 7. The absolute angle position is also provided as PWM-encoded output signal.

The AS5047D is available as a single die in a compact 14-pin TSSOP package.

• Easy to use – saving costs on DSP
  • DAEC Dynamic angle error compensation
• Good resolution for motor and position control
  • 14-bit core resolution
• Simple optical encoder replacement
  • ABI programmable decimal and binary pulse-count: 500, 400, 300, 200, 100, 50, 25, 8, 512, 256 ppr
• No programmer needed (via SPI command)
  • Zero position, configuration programmable
• Versatile choice of the interface
  • Independent output interfaces: SPI, ABI, UVW, PWM
• Lower system costs (no shielding)
  • Immune to external stray field